Photographic printing apparatus



FIG. 1 is a front perspective view of the photographic printing apparatus embodying my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a back elevational view thereof; and

FIG. 6 is a right-hand side elevational view thereof. 

The ornamental design for a photographic printing apparatus, substantially as shown and described. 